The Samsung Epix has been available in Europe for a while now as the Samsung i780. It is now available in the US as the Samsung Epix device. It's different to the Samsung Blackjack as this device has a touchscreen and uses Windows Mobile Professional (instead of Standard). The navigation is really interesting in that it has an 'optical' mouse in the centre of the device which can be used either as a mouse (with a pointer on screen) or for scrolling.
One question I have is how come the US variants get cool names and in Europe we just get numbers for the devices :(
You can get more details on the device HERE